Flathead County, MT ZIP Codes

16 ZIP codes cover all or part of Flathead County, Montana. The Census Bureau counts 110,695 residents in the county, with a median household income of $73,925 and a median home value of $535,500. Median household income ranges from $31,970 in 59845 to $87,237 in 59922. Its largest communities include Kalispell, Evergreen, Whitefish, Columbia Falls and Lakeside.

Flathead County (Census county figures)

MeasureCensus figure
Residents110,695
Households44,233
Median household income$73,925
Median home value$535,500
Median age42.2
Median rent$1,142

All 16 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)114,973
Households (sum of ZIP codes)46,069
Median household income, range across ZIP codes$31,970 (59845) to $87,237 (59922)
Household-weighted average of ZIP medians (an approximation, not a true median)$74,113
Homeowners72.8%
Households with kids under 1825.8%
Moved in the past year11.7%
Carrier routes in EDDM2GO's route library16 routes, 7,438 homes (7 of 16 ZIP codes)

Top facts

Every ZIP code in Flathead County

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
59901Kalispell63,16124,367$72,523$476,30070.0%28.2%13.3%——100% of its land
59912Columbia Falls15,7525,995$76,617$488,80072.0%32.5%11.6%106,004100% of its land
59937Whitefish15,1146,982$75,428$698,20073.4%21.1%9.3%——100% of its land
59911Bigfork9,4934,077$83,019$666,40084.0%16.6%10.3%——14% of its land
59922Lakeside2,337932$87,237$657,50070.2%24.4%11.5%161790% of its land
59932Somers1,850857$60,152$768,60066.3%11.0%1.7%1605100% of its land
59920Kila1,704543$86,605$722,50095.6%34.6%7.1%1158100% of its land
59925Marion1,532588$63,981$437,80087.1%20.7%10.5%——100% of its land
59845Hot Springs1,223542$31,970$191,10069.2%17.7%8.3%——16% of its land
59936West Glacier690264$85,455$532,30077.3%22.7%15.7%——100% of its land
59919Hungry Horse679260$53,056—86.2%33.8%3.5%——100% of its land
59913Coram582246$44,464$560,100100.0%8.5%1.0%——100% of its land
59927Olney270129$58,713$445,70070.5%2.3%0.0%——100% of its land
59926Martin City268142$70,948$480,00070.4%0.0%0.0%123100% of its land
59916Essex23299$60,250$390,00092.9%5.1%2.2%1134100% of its land
59928Polebridge8646$63,333$761,90087.0%0.0%22.1%1181100% of its land

A ZIP code is listed for Flathead County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.

Cities and communities

Rankings

Price a mailing to Flathead County ZIP codes

EDDM guides

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Frequently asked questions

What ZIP codes are in Flathead County, MT?
59901, 59912, 59937, 59911, 59922, 59932, 59920, 59925, 59845, 59936, 59919, 59913, 59927, 59926, 59916 and 59928. Some cross the county line; the table shows each ZIP's share of land in the county.
What is the population of Flathead County?
110,695 residents in 44,233 households (ACS 5-year estimates, 2020–2024).
What is the median household income in Flathead County?
$73,925 for the county as a whole. Its ZIP codes range from $31,970 (59845) to $87,237 (59922).
Which Flathead County ZIP code has the highest median household income?
59922, at $87,237, among ZIP codes with at least 1,000 residents. See the full ranking of Flathead County ZIP codes by income.
How many carrier routes and mailboxes are in Flathead County?
For the 7 of 16 ZIP codes in EDDM2GO's stored route library: 16 carrier routes reaching 7,438 residential and 285 business mailboxes. The route map loads the rest when you search them.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.